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Definitions

C.O.

NOUN
conscientious objector
Synonyms


co
NOUN
carbon monoxide
Synonyms


NOUN
commanding officer
Synonyms






Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pennington's hometown was Glendale, Kentucky, and he was assigned to the 1st Space Battalion, 1st Space Brigade out of Fort Carson, CO.

From Barron's • Mar. 10, 2026

“What Eric voted for was a resolution to condemn a horrific antisemitic attack in Boulder, CO that killed Karen Diamond, an 82-year old grandmother,” a campaign spokesman said in a statement.

From Los Angeles Times • Jan. 28, 2026

The city will continue to demand that the GEO Group provides full transparency of operations, that they submit a CO application to ensure compliance all around, and complete ongoing inspections for safety of all involved.

From Salon • May 13, 2025

The victims have been identified only by the initials NO, TA, CO, CA and MK.

From BBC • Aug. 13, 2024

Charles Greiner, who was fit, white-haired, and soft-spoken, stood before the lectern and told us he had come up through the system, starting upstate as a CO.

From "Newjack: Guarding Sing Sing" by Ted Conover




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